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3 years ago

Can someone help? Don’t need any working out

Mathematics

1 answer:

Novay_Z [31]3 years ago

7 0

Volume= 301.6
curved surface area= 188.5

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Solve: log(2)(3x + 8) = 5 Which is an equivalent equation?

Rzqust [24]

You can just simplify to make an equivalent equation:

(2)(3x + 8) = 5 ⇒ 6x + 16 = 5

Answer:

$\boxed{\bf~6x + 16 = 5}$

Hope it helped,

BioTeacher101

(If you have any questions feel free to ask them in the comments)

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3 years ago

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Write the coordinates of the vertices after a reflection over the y-axis.

mart [117]

Answer:

A (10, -9)

B (0,-9)

C (0,-1)

D (10,-1)

Step-by-step explanation:

Negate the x-coordinates of each of the vertices

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2 years ago

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In how many arrangements can 3 boys and 4 girls stand in a row such that no two boys are together?

S_A_V [24]

The answer is C :)

C

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3 years ago

What’s the answer F(x)=3/x-2

Oksana_A [137]

(-infinity,2)U(2,infinity)
{x/xnot=2}
this is what I found

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3 years ago

Please help with this Math Question...

Nataly [62]

Answer: A

Step-by-step explanation:

f(x) = x³ + 4x² + 7x + 6

possible rational roots are ±{1, 2, 3, 6}

Try x = -2

-2 | 1 4 7 6

| ↓ -2 -4 -6

1 2 3 0 ← remainder is 0 so x = -2 is a root ⇒ (x + 2) = 0

The factored polynomial x² + 2x + 3 = 0 is not factorable so use the quadratic formula to find the roots.

a=1, b=2, c=3

$x=\dfrac{-b\pm\sqrt{b^2-4ac} }{2a}$

$x=\dfrac{-(2)\pm\sqrt{(2)^2-4(1)(3)} }{2(1)}$

$x=\dfrac{-2\pm\sqrt{4-12} }{2}$

$x=\dfrac{-2\pm\sqrt{-8} }{2}$

$x=\dfrac{-2\pm2i\sqrt{2}}{2}$

$x = -1 \pm i\sqrt{2}$

$x = -1 + i\sqrt{2}$ $x = -1 - i\sqrt{2}$

$x - (-1 + i\sqrt{2})=0$ $x - (-1 - i\sqrt{2})=0$

The factors are:

$(x - 2)[x - (-1 + i\sqrt{2})][x - (-1 - i\sqrt{2})]$

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3 years ago